add tool to easily manually check proto1->proto2 upgrade for given metrics
add tool to easily manually check proto1->proto2 upgrade for given metrics

vimeo/graph-explorer,vimeo/graph-explorer,vimeo/graph-explorer,dbirchak/graph-explorer,vimeo/graph-explorer,dbirchak/graph-explorer,dbirchak/graph-explorer,dbirchak/graph-explorer